Lab 4: Flashcardziz Questions

Front

Convert 1234 from decimal to binary:

Back

0b10011010010

Front

Convert –67 to 8-bit two’s complement binary:

Back

0b10111101

Front

Convert 0x67 to decimal:

Back

103

Front

Convert 0xCAFE to decimal:

Back

51966

Front

Sign extend the two’s complement number, 0b11010101, to 12 bits

Back

0b111111010101

Front

Negate the following in two’s complement: 0x6741

Back

0x98BF

Front

Does adding 0b1110 + 0b1010 (both two’s complement) overflow?

Back

No

Front

Simplify the following boolean expression: (C | (A | B)) & (C | ~(A | B))

Back

C

Front

What bitmask should I do to clear bit 1 on bit vector A = 11010? Options: A | 00001, A & 11101, A ^ 11111, A ^ 00100, A | 00010

Back

A & 11101

Front

If X and Y are bit 1 and bit 0 of the decoder’s input, respectively, and X=1 and Y=0, what should S1 and S0 be set to so that OUT = 1?

Back

S1=0, S0=1